[HDFS-7467] Provide storage tier information for a directory via fsck

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.6.0
• Fix Version/s: 2.7.0
• Component/s: balancer & mover
• Hadoop Flags: Reviewed
• Assignee: Benoy Antony
• Reporter: Benoy Antony
• Created: 02/Dec/14 19:46
• Updated: 24/Apr/15 23:22
• Resolved: 26/Feb/15 00:47

Description

Currently fsck provides information regarding blocks for a directory.
It should be augmented to provide storage tier information (optionally).

The sample report could be as follows :

Storage Tier Combination        # of blocks       % of blocks
DISK:1,ARCHIVE:2                  340730           97.7393%
 
ARCHIVE:3                           3928            1.1268%
 
DISK:2,ARCHIVE:2                    3122            0.8956%
 
DISK:2,ARCHIVE:1                     748            0.2146%
 
DISK:1,ARCHIVE:3                      44            0.0126%
 
DISK:3,ARCHIVE:2                      30            0.0086%
 
DISK:3,ARCHIVE:1                       9            0.0026%